Seo Yun Lee teaches at an elementary school in Seoul

and also works as an EBS instructor. With her belief that "happy children makes a happy Korea", Lee meets thousands of children while teaching and tries to find the best way to educate them. Lee has appeared on the EBS TV program Educational Debate and gives lectures to corporations, public organizations, libraries, and schools. She has authored Tips for Studying during Vacation for Elementary Schoolers, Strange Junk Shop Selling Happiness, and Magic Camera that Finds You a Dream.